4 85420E/85460A High Frequency Filter Assembly Replacement Kit
Remove the Instrument Cover
WARNING
These servicing instructions are for use by qualified personnel only. To avoid
electrical shock, do not perform any servicing unless you are qualified to do
so.
The opening of covers or removal of parts is likely to expose dangerous
voltages. Disconnect the instrument from all voltage sources while it is being
opened.
The power cord is connected to internal capacitors that may remain live for
5 seconds after disconnecting the plug from its power supply.
CAUTION
To prevent damage to the front-frame, use a soft cloth or towel between the
work surface and the front-frame.
Removal
1. Disconnect the instrument from ac power.
2. Place the instrument on the work surface with its front panel down.
3. Remove the four rear-feet screws using a Torx screwdriver.
4. Pull the cover off towards the rear.
Figure 0-1
Instrument Cover Replacement